Leuze
PRK28/2N-M12
Polarized Retroreflective Sensor, 10-30VDC, 0.02-6m Range Limit with Reflector TK(S) 100x100, Red LED, 620nm, NPN, Light/Dark Switching, M12 Male 4-Pin A-Coded Connector, 15 x 46.5 x 31.8mm (WHL), ABS Body/Plastic Lens, -40 to +60C, IP67